Swift SSL connection

Una classe in Swift per effettuare connessioni client utilizzando un socket SSL

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// // SSLConnection.swift // MacSSLTest // // Created by Michel on 16/04/15. // Copyright (c) 2015 DMD Medtech. All rights reserved. // import Foundation protocol SSLConnectionDelegate { func received(msg: String) } class SSLConnection : NSObject, NSStreamDelegate { private var hostName: CFString private var port: UInt32 private var readStream: NSInputStream! private var writeStream: NSOutputStream! var delegate: SSLConnectionDelegate? private var bufferedMsg = "" init(host: CFString, port p: UInt32) { hostName = host port = p } func stream(stream: NSStream, handleEvent eventCode: NSStreamEvent) { switch (eventCode) { case NSStreamEvent.OpenCompleted: NSLog("Stream opened") break case NSStreamEvent.HasBytesAvailable: NSLog("HasBytesAvailable") var buffer = [UInt8](count: 4096, repeatedValue: 0) if stream == readStream { while readStream.hasBytesAvailable { var len = readStream.read(&buffer, maxLength: buffer.count) if len > 0 { for i in 0...len { let c = UnicodeScalar(buffer[i]) if c.value == 10 || c.value == 13 { if count(bufferedMsg) > 0 { delegate?.received(bufferedMsg) self.bufferedMsg = "" } } else { self.bufferedMsg.append(c) } } var output = NSString(bytes: &buffer, length: len, encoding: NSUTF8StringEncoding) if output != "" { NSLog("server said: %@", output!) } } } } break case NSStreamEvent.ErrorOccurred: NSLog("ErrorOccurred") break case NSStreamEvent.EndEncountered: NSLog("EndEncountered") break default: NSLog("unknown.") } } func writeString(msg: String) -> Bool { let messageWithFlush = msg + "\n" let data: NSData = messageWithFlush.dataUsingEncoding(NSUTF8StringEncoding)! let buf = UnsafePointer<UInt8>(data.bytes) println("Scrivo \(data.length) bytes...") let result = writeStream?.write(buf, maxLength: data.length) if let r = result { println("Result of write: \(r)") return r != 0 } return false } func connect() -> Bool { var rs: Unmanaged<CFReadStream>? var ws: Unmanaged<CFWriteStream>? CFStreamCreatePairWithSocketToHost(nil, hostName as CFString, port, &rs, &ws) let conf = ["kCFStreamSSLAllowsExpiredCertificates" : NSNumber(bool: true), "kCFStreamSSLAllowsExpiredRoots" : NSNumber(bool: true), "kCFStreamSSLAllowsAnyRoot" : NSNumber(bool: true), "kCFStreamSSLValidatesCertificateChain" : NSNumber(bool: false) ] let retainedWs = ws?.takeRetainedValue() let retainedRs = rs?.takeRetainedValue() let resWP = CFWriteStreamSetProperty(retainedWs, kCFStreamPropertySSLSettings, conf as CFTypeRef) let resRP = CFReadStreamSetProperty(retainedRs, kCFStreamPropertySSLSettings, conf as CFTypeRef) self.readStream = retainedRs self.writeStream = retainedWs self.readStream.delegate = self self.writeStream.delegate = self self.readStream.scheduleInRunLoop(NSRunLoop.currentRunLoop(), forMode: NSDefaultRunLoopMode) self.writeStream.scheduleInRunLoop(NSRunLoop.currentRunLoop(), forMode: NSDefaultRunLoopMode) self.readStream.open() self.writeStream.open() return true } }